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  1. B

    LMM tuning problems

    Not necessarily looking for a tune just possibly some guidance more or less
  2. B

    LMM tuning problems

    Thanks, well if anybody is willing to email me it’s in my profile.
  3. B

    LMM tuning problems

    2009 lmm Chevy Silverado 2500hd Ltz Recently had to replace my ecm because original one fried (capacitor came loose and shorted it). Truck has no dpf and have been trying to tune with HP Tuners because I am un able to get the tune off the original ecm. What all needs to be adjusted to keep the...
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